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R80ESN/R80ESL(Series A): Installation, Start–Up, Operating and Service and Maintenance Instructions
NOTES FOR THERMOSTAT WIRING DIAGRAMS
1. Refer to outdoor equipment Installation Instructions for additional
information and setup procedure.
2. Outdoor Air Temperature Sensor must be attached in all dual fuel
application.
3. Refer to ICP thermostat Installation Instructions for additional
information and setup procedure.
4. HUM 24VAC terminal is 24 VAC and is energized when the low
pressure switch closes during a call for heat.
5. When connecting 115 VAC to humidifier use a separate 115 VAC
supply.
6. When using a humidifier on a HP installation, connect humidifier to
hot water.
VENTING
The furnace shall be connected to a listed factory built chimney or vent,
or a clay-tile lined masonry or concrete chimney. Venting into an unlined
masonry chimney or concrete chimney is prohibited.
When an existing Category I furnace is removed or replaced, the original
venting system may no longer be sized to properly vent the attached
appliances. An improperly sized Category I venting system could cause
the formation of condensate in the furnace and vent, leakage of
condensate and combustion products, and spillage of combustion
products into the living space.
Vent system or vent connectors may need to be resized. Vent systems or
vent connectors, must be sized to approach minimum size as determined
using appropriate table found in the NFGC.
GENERAL VENTING REQUIREMENTS
Follow all safety codes for proper vent sizing and installation
requirements, including local building codes, the current edition of
National Fuel Gas Code ANSI Z223.1/NFPA 54 (NFGC), Parts 12 and
13, the local building codes, and furnace and vent manufacturers'
instructions.
These furnaces are design-certified as Category I furnaces in accordance
with current edition of ANSI Z21.47/CSA 2.3 and operate with a
non-positive vent static pressure to minimize the potential for vent gas
leakage. Category I furnaces operate with a flue loss not less than 17
percent to minimize the potential for condensation in the venting system.
These furnaces are approved for common venting and multistory venting
with other fan assisted or draft hood equipped appliances in accordance
with the NFGC, the local building codes, and furnace and vent
manufacturers' instructions.
The following information and warning must be considered in addition
to the requirements defined in the NFGC.
1. If a vent (common or dedicated) becomes blocked, the furnace will
be shut off by the draft safeguard switch located on the vent elbow.
2. Do not vent this Category I furnace into a single-wall dedicated or
common vent. The dedicated or common vent is considered to be
the vertical portion of the vent system that terminates outdoors.
3. Vent connectors serving Category I furnaces shall not be connected
into any portion of a mechanical draft system operating under
positive pressure.
4. Do not vent this appliance with any solid fuel burning appliance.
5. Category I furnaces must be vented vertically or nearly vertically
unless equipped with a listed power venter.
6. Do not vent this appliance into an unlined masonry chimney. (Refer
to Chimney Inspection Chart,
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Fig.
30).
CHIMNEY INSPECTION CHART
For additional requirements refer to the National Fuel Gas Code NFPA 54/ANSI Z223.1 and ANSI/NFPA 211
Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances
Crown
Rebuild
condition:
Yes
crown.
Missing mortar
or brick?
No
Is chimney
No
property lined with
clay tile liner?
Yes
Repair
Is
No
liner or top seal
liner and top
or reline chimney as
seal in good
necessary.
condition?
Yes
Debris
Mortar
in cleanout?
Yes
or tile
Mortar, tile, metal vent,
debris?
fuel oil residue?
No
Remove metal vent
or liner.
Clay
Yes
tile misalignment,
missing sections,
gaps?
No
Is chimney
Condensate
lined with properly
drainage at bottom
sized, listed liner or
of chimney?
Type-B vent?
Yes
No
Chimney
Is chimney
exposed to
to be dedicated to
outdoors below
a single
roof line?
Yes
furnace?
No
Chimney is
acceptable for use.
Fig. 30 – Chimney Inspection Chart
MASONRY CHIMNEY REQUIREMENTS
NOTE: These furnaces are CSA design-certified for use in exterior
tile-lined masonry chimneys with a factory accessory Chimney Adapter
Kit. Refer to the furnace rating plate for correct kit usage. The Chimney
Adapter Kits are for use with ONLY furnaces having a Chimney Adapter
Kit numbers marked on the furnace rating plate.
If a clay tile-lined masonry chimney is being used and it is exposed to
the outdoors below the roof line, relining might be required. Chimneys
shall conform to the Standard for Chimneys, Fireplaces, Vents, and Solid
Fuel Burning Appliances current edition of ANSI/NFPA 211 and must
be in good condition.
U.S.A.— Refer to Sections 13.1.8 and 13.2.20 of the current edition of NFGC
NFPA54/ANSI Z223.1 or the authority having jurisdiction to determine whether
relining is required. If relining is required, use a properly sized listed metal liner,
Type-B vent, or a listed alternative venting design.
NOTE: See the current edition of NFPA54/ANSI Z223.1, 13.1.8 and
13.2.20 regarding alternative venting design and the Exception, which
cover installations such as the Chimney Adapter Kits, which are listed
for use with these furnaces. See Specification Sheet for accessory
listing.
20
Reline
Repair
Yes
Remove mortar
and tile debris
No
Consult
Part B of
Not Suitable
chimney adapter venting
No
instructions for
application
suitability.
Line chimney with property
Suitable
sized, listed flexible metal
liner or Type-B vent per
Yes
Sizing Tables and liner or
Install chimney
vent manufacturer's
adapter per
Installation instructions.
instructions.
Not Suitable
Yes
Consult
Part C of
No
Suitable
chimney adapter venting
instructions for
application
suitability
Install chimney
adapter per
instructions.
NFGC Vent
A10133
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